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Bulletin of the British Museum (Natural History)

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198 BRIAN JOHN COPPINS<br />

arceutina (Ach.) Arnold. In his diagnosis Nylander gives <strong>the</strong> spore length as 45-70 /xm and on <strong>the</strong> holotype<br />

packet he wrote '45-20x1 yam'; my examination <strong>of</strong> <strong>the</strong> holotypefound <strong>the</strong> spores to be 38-51x1-5 /xm.<br />

Lecidea clavulifera Nyl. - see Psilolechia clavulifera.<br />

Lecidea demarginata Nyl. in Flora, Jena 61: 245 (1878). Type: Finland, Tavastia australis, Evo, 'supra<br />

saxum in sylva juniori, loco olim deusto', 1873,7. P. Norrlin, Norrlin & Nyl. Herb. Lich. Fenn. 179 (Hlectotype!;<br />

isolectotypes (without exsiccate label): H-NYL 20162! & 20163!).<br />

In <strong>the</strong> protologue Nylander cited material <strong>of</strong> Norrlin's from Finland and <strong>of</strong> Larbalestier's from Ireland.<br />

The epi<strong>the</strong>t 'demarginata' was first used in 1875 on <strong>the</strong> label <strong>of</strong> Herb. Lich. Fenn. 179, although without a<br />

diagnosis. An example <strong>of</strong> this exsiccate is here selected as lectotype, and is a specimen <strong>of</strong> Lecidea erratica<br />

Korber. The cited Larbalestier material is represented in BM and H and belongs to M. lutulata.<br />

Lecidea denigrata var. bacidiella Vainio in Medd. Soc. Fauna Fl. fenn. 10: 28 (1883). - Micarea bacidiella<br />

(Vainio) Vezda, in Vezda &. V. Wirth in Folia geobot. phytotax., Praha 11: 100 (1976). Type: Finland,<br />

Lapponia kemensis, Sodankyla, Pyhatunturi, Kannolla, on hgnum, 1878, E. A. Vainio (TUR-VAINIO<br />

22505 -holotype!).<br />

As stated by Vainio (1934: 462) this is a synonym <strong>of</strong> Bacidia miniuscula Anzi (i.e. B. beckhausii Korber).<br />

The following were notes made from <strong>the</strong> holotype <strong>of</strong> var. bacidiella:<br />

Thallus lignicolous, entirely endoxylic. Phycobiont cells c. 8-14 ^tm diam. Apo<strong>the</strong>cia thinly marginate<br />

and ± plane when young, soon becoming convex and immarginate, black, c. 0-2-0-3 mm diam. Hymenium<br />

c. 35 /xm tall, with olivaceous vertical streaks, K+ violet, C+ violet (not red). Asci clavate, 30-35x10-12<br />

/im, 8-spored. Spores rod-shaped or slightly curved, (l-)3(-7)-septate, 17-26x1-7-2 /nm. Paraphyses<br />

simple or sparingly branched, 1-1-5 /xm wide; apices somewhat incrassate, to 2 /xm wide. Hypo<strong>the</strong>cium<br />

hyaline. Excipulum dilute olivaceous (K+ violet), <strong>of</strong> radiating, branched hyphae c. 1-5-2 /xm wide<br />

embedded in a dense gel; hyphae becoming more distinct in K but not separating. Pycnidia immersed in <strong>the</strong><br />

substratum, black, c. 50-100 /xm diam; walls olivaceous, K-l- violet. Conidia simple, hyaline, oblong-<br />

ellipsoid, <strong>of</strong>ten wider at proximal end, 2-8-3-5 x 1(-1 -4) /xm.<br />

B. beckhausii usually occurs on bark, although I have seen a few additional lignicolous specimens from<br />

Scotland. Micarea bacidiella sensu Vezda & Wirth {loc. cit. ) is not B. beckhausii but <strong>the</strong> superficially similar<br />

Micarea globulosella (see p. 135).<br />

Lecidea erysiboides Nyl. in Not. Sdllsk. Fauna Fl. fenn. 4: 232 (1859). - Catillaria erysiboides (Nyl.) Th. Fr.<br />

Lich. Scand. 2: 572 (1874). Type: Finland, Nylandia, Helsingfors [Helsinki], 'Gumtackt' on rotting<br />

decorticate pine trunk, 1858, W. Nylander (H - lectotype!; H-NYL p.m. 4514- isolectotype!).<br />

This name has been misapplied by many lichenologists and <strong>the</strong> majority <strong>of</strong> specimens seen belong to<br />

Micarea prasina, or o<strong>the</strong>r species such as Catillaria sphaeroides, Lecania cyrtella, and Micarea denigrata.<br />

The type material <strong>of</strong> L. erysiboides is not a Micarea but a species <strong>of</strong> Catillaria s. lat. , although I am<br />

uncertain <strong>of</strong> its affinities. It has small, plane to convex, reddish brown (testaceous) apo<strong>the</strong>cia that are<br />

marginate when young, <strong>the</strong> excipulum is composed <strong>of</strong> much-branched, radiating hyphae which are distinct<br />

in K but still tightly bound by <strong>the</strong> gel matrix, and <strong>the</strong> spores are ovoid and <strong>of</strong>ten constricted at <strong>the</strong> septum,<br />

1-septate with <strong>the</strong> upper cell usually enlarged and ± globose, 8-9-5x3-5 /xm. C. erysiboides has not been<br />

correctly reported from <strong>the</strong> <strong>British</strong> Isles but it should be looked for, especially in <strong>the</strong> eastern Scottish<br />

highlands.<br />

Additional specimens <strong>of</strong> C. erysiboides examined: NORWAY. Hordland: Granvin, on Betula lignum,<br />

1904, Havaas, Lich. Exs. Norv. 292 (BG). FINLAND. Nylandia: Helsinki, 1859, W. Nylander (H-NYL<br />

21650), and 1861 (BM). ITALY: Trentino ('Sudtirol'): Paneveggio, on top <strong>of</strong> cut stump <strong>of</strong> Picea, 2 ix 1883,<br />

Arnold, Lich. Exs. 1002 (BM ex K). USSR. 'Lapponia orientalis', 1863, A^. /. Fellman, Lich. Arct. 156<br />

(BMexK).<br />

Lecidea fuliginea Ach., Syn. Lich.: 35 (1814). - Micarea fuliginea (Ach.) Fr., Syst. orb.: 257 (1825). -<br />

Micarea fuliginea (Ach.) Fr., Stirp. agrifemsion. : 37 (1825); comb, inval. (Arts 34.1, 43).<br />

I have not seen <strong>the</strong> type <strong>of</strong> this name but it is probably a synonym <strong>of</strong> Lecidea icmalea Ach. A later<br />

synonym <strong>of</strong> <strong>the</strong> latter is Pannularia perfurfurea Nyl. which is <strong>the</strong> type <strong>of</strong> <strong>the</strong> genus Placynthiella Gyelnik.<br />

Lecidea gelatinosa Florke in Magazin Ges. naturf. Fr. Berl. 3: 201 (1809). - Micarea gelatinosa (Florke)<br />

Brodo in Bryologist 70: 216 (1967).<br />

I have not seen type material <strong>of</strong> this species, but if its general interpretation is correct <strong>the</strong>n it is not a<br />

Micarea. In fact it belongs in <strong>the</strong> Lecidea granulosa group, which includes L. aeruginosa Borrer, L.<br />

aene<strong>of</strong>usca Florke ex Flotow, L. granulosa (H<strong>of</strong>fm.) Ach. and L. viridescens (Schrader) Ach. These<br />

species are not congeneric with <strong>the</strong> type species <strong>of</strong> Lecidea Ach. (L. fuscoatra (L.) Ach.) and <strong>the</strong>y await <strong>the</strong><br />

formal transference to a genus in <strong>the</strong> Trapeliaceae . Fur<strong>the</strong>r detailed studies are needed to see if <strong>the</strong>y can be 1

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